Rack apparatus



FIG. 1 is a side perspective view of a rack apparatus of the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof shown with an environmental element; and,

FIG. 5 is a side perspective view thereof shown with an environmental element.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a rack apparatus, as shown and described. 